در دنیای خودروها اینطور بیان میشود که عدد بالاتر نشاندهنده کیفیت بهتر است. به هر حال، قدرت اسب بخار بیشتر و میزان مسافت طی شده بیشتر با هر باک پر، خواسته همه رانندگان است و همین موارد باعث میشوند که حس کنیم، عدد اکتان بالاتر برابر با کارایی بیشتر است. شرکتهای سازنده بنزین هم این ذهنیت را دریافته و از هیچ تلاشی برای برآورده کردن این خواسته رانندهها دریغ نمیکنند. برچسب گذاری بنزین با اکتان ۸۷ به عنوان بنزین معمولی و بنزین با اکتان ۹۱ یا ۹۳ به عنوان بنزین سوپر تلاشی در جهت تقویت این طرز فکر است.
از آنجایی که بنزین سوپر نسبت به بنزین معمولی قیمت بالاتری دارد، این شرکتها علاقمندند که افراد بیشتری را به پرداخت پول بیشتر به ازای کیفیت بهتر سوخت ترغیب کنند. اینجاست که فلسفه معنی عدد اکتان بنزین وارد کارزار میشود. در طی زمان طولانی به مردم قبولانده شده که سوخت با عدد اکتان بالا، تمیزتر و کاملتر میسوزد، و انرژی بیشتر و میزان مسافت طی شده بیشتری نسبت به بنزین با عدد اکتان معمولی برای آنها به ارمغان میآورد، زیرا این سوخت انرژی بیشتری در خود دارد. هیچکدام از این اظهارنظرها صحیح نیستند، در حقیقت عدد اکتان بنزین هیچ ربطی به میزان قدرت آن ندارد، این عدد فقط بیان کننده این است که این سوخت قبل از اشتعال تا چه حد میتواند فشرده شود، هرچقدر عدد اکتان بالاتر باشد، احتمال اشتعال تحت فشار آن کمتر است.
ولی چرا همه میخواهند سوختی تولید کنند که اشتعال آن در موتور سختتر باشد؟ برای فهمیدن نقش عدد اکتان و فشار احتراق در موتور، آشنایی با اصطلاحی به نام “knock” ضروری به نظر میرسد. وقتی که بنزین از طریق انژکتور به داخل سیلندر اسپری میشود و با اکسیژن ترکیب میشود، طراحان موتور انتظار دارند این سوخت به حالت گاز در آنجا بماند تا زمانی که شمعها روشن شوند و باعث انفجار برای حرکت به سمت پایین پیستون برای ایجاد نیرو شوند. مدت زمان این انفجار بسیار حیاتی است، بنزینی که خیلی سریع مشتعل شود باعث ایجاد knock (ضربه) میشود که این عمل خروجی و کارایی موتور را کاهش میدهد و حتی در شرایط بد میتواند به موتور آسیب فیزیکی برساند.
در اکثر موتورها، به ندرت شاهد این نوع ضربه هستیم و این به این دلیل است که میزان تراکم (فشاری که مخلوط سوخت و هوا به سیلندر وارد میکند) به اندازه کافی پایین است و عدد اکتان بنزینهای معمولی کافی و مطلوب است. قاطعانه میتوان گفت هیچ سودی از استفاده از بنزینهای سطح بالا در موتورهای استاندارد و خوب نصیب شما نخواهد شد، زیرا این موتورها قادر نیستند از این خاصیت ضربهٔ کمتر سود ببرند، اگرچه طرحهای مدیریت موتور پیشرفتهتر به ویژه مدلهای به کار رفته در وسایل مجهز به تکنولوژی توربو شارژ و سوپر شارژ میتوانند تراکم را تا حد بالایی انجام دهند، بنابراین به بنزینهای با اکتان بالاتر برای جلوگیری از ایجاد ضربه نیازمندند.
تقریباً در دستورالعمل همه وسایل نقلیه عدد اکتان بهینه برای آن وسیله درج شده است. برخی از خودروهای لوکس یا مسابقهای از هشداری بر روی درب باک استفاده میکنند که بر روی آن نوشته شده «فقط از سوخت بدون سرب با کیفیت بالا استفاده کنید
به عنوان جمعبندی بار دیگر تاکید میکنیم که با استفاده از سوختهای با درجه اکتان بالا در موتوری که برای استفاده از سوختهای معمولی طراحی و تنظیم شده هیچ تغییری در میزان قدرت یا کارایی موتور ایجاد نخواهد شد. تفکری هم که درباره تمیز کردن داخل موتور به واسطه استفاده از سوختهای با اکتان بالا رایج است، اشتباه است. از سوی دیگر، استفاده از سوختهای با اکتان پایین، در موتوری که برای استفاده از سوختهای با اکتان بالا طراحی شده است، ریسک آسیب به موتور را افزایش میدهد و به مرور زمان بر کارایی آن تأثیر منفی خواهد داشت.
دفعه بعد که کسی خواست فلسفه عدد اکتان سوخت را برای شما تشریح کند، میتوانید برای او تأثیر عدد اکتان را به طور کامل شرح دهید، یا اینکه سری تکان بدهید، لبخندی بزنید، پول سوخت را بپردازید و حرکت کنید!
Greetings! Very helpful advice in this particular post! It’s the little changes that will make the greatest changes. Thanks for sharing!
I was extremely pleased to find this web site. I need to to thank you for ones time for this wonderful read!! I definitely really liked every part of it and i also have you book marked to check out new stuff in your site.
You have made some good points there. I checked on the net for additional information about the issue and found most people will go along with your views on this web site.
You have made some good points there. I checked on the web to learn more about the issue and found most individuals will go along with your views on this web site.
There is certainly a lot to know about this topic. I love all of the points you’ve made.
Very nice blog post. I certainly appreciate this website. Stick with it!
I used to be able to find good information from your articles.
Great job on explaining this complex topic!보증금 대출
This is an eye-opening perspective.개인회생 대출
Your writing resonates deeply with me.전세자금 대출
I admire the depth of your research.신혼부부 대출
I’m impressed by the depth of your analysis.백링크 확인
Your writing style is so engaging and clear.검색엔진최적화 방법
Good post. I learn something new and challenging on blogs I stumbleupon everyday. It will always be helpful to read articles from other authors and use a little something from their web sites.
Saved as a favorite, I really like your blog!
Hi! I simply want to give you a big thumbs up for your great info you have here on this post. I will be coming back to your site for more soon.
Can I simply just say what a relief to discover somebody who genuinely knows what they’re discussing on the internet. You actually understand how to bring an issue to light and make it important. More people should read this and understand this side of the story. I was surprised you aren’t more popular because you definitely have the gift.
I used to be able to find good information from your blog posts.
I blog quite often and I really appreciate your content. This article has really peaked my interest. I will bookmark your blog and keep checking for new details about once a week. I subscribed to your Feed too.
I like this web site very much, Its a rattling nice post to read and
obtain information.Blog range
There’s definately a lot to learn about this topic. I love all of the points you have made.
I’m amazed, I have to admit. Seldom do I come across a blog that’s equally educative and amusing, and let me tell you, you have hit the nail on the head. The issue is something not enough men and women are speaking intelligently about. Now i’m very happy I stumbled across this during my search for something relating to this.
I couldn’t resist commenting. Exceptionally well written!
Great article! We will be linking to this great content on our site. Keep up the good writing.
There’s certainly a great deal to know about this issue. I like all the points you’ve made.
Pretty! This has been an extremely wonderful article. Thank you for supplying this info.
I like this – Gulvafslibning | Kurt Gulvmand , enjoyed this one appreciate it for posting keep update – Gulvafslibning | Kurt Gulvmand.
I like it whenever people come together and share opinions. Great blog, keep it up!
An impressive share, I given this onto a colleague who has been doing a small analysis for this. And hubby in truth bought me breakfast due to the fact I uncovered it for him.. smile. So ok, i’ll reword that: Thnx to the treat! But yeah Thnkx for spending plenty of time to discuss this, Personally i think strongly regarding it and adore reading more on this topic. Whenever possible, as you grow expertise, could you mind updating your website with additional details? It is highly ideal for me. Big thumb up just for this article!
Indeed, most of the CGI effects end up being over-the-top but that is easily overcome with Cruise’s energy in his own stunt driven scenes.
I’m not that much of a internet reader to be honest but your blogs really nice, keep it up! I’ll go ahead and bookmark your site to come back down the road. Cheers
Thank you for writing this tremendous top quality article. The information in this material confirms my point of view and you really laid it out well. I could never have written an article this good.
clay garden pots are great but if you want a cheaper alternative, you can always use those plastic garden pots`
Hello there Internet marketer. I truly the same as your current article along with the site on the whole! The particular written piece is in fact really clearly written as well as effortlessly simple to comprehend. Your present Blog site style is wonderful too! Will always be awesome to learn exactly where I could get that. If possible maintain inside the superb task. Young people need a lot more these website owners such as yourself on the internet and in addition a lesser amount of spammers. Wonderful guy!
It’s difficult to find knowledgeable people in this particular subject, however, you sound like you know what you’re talking about! Thanks
This blog was… how do you say it? Relevant!! Finally I have found something which helped me. Kudos.
This is a topic that is close to my heart… Thank you! Exactly where can I find the contact details for questions?
very good publish, i definitely love this web site, keep on it
An impressive share, I just given this onto a colleague who was doing a bit evaluation on this. And he actually bought me breakfast because I found it for him.. smile. So let me reword that: Thnx for the treat! However yeah Thnkx for spending the time to debate this, I really feel strongly about it and love reading more on this topic. If possible, as you become experience, would you mind updating your blog with more details? It’s extremely useful for me. Big thumb up for this blog put up!
Good day! I just want to give you a huge thumbs up for the great info you have got right here on this post. I am returning to your site for more soon.
Hi! I could have sworn I’ve visited this blog before but after browsing through many of the posts I realized it’s new to me. Regardless, I’m definitely happy I found it and I’ll be bookmarking it and checking back regularly!
Your style is very unique in comparison to other folks I’ve read stuff from. Many thanks for posting when you have the opportunity, Guess I’ll just book mark this blog.
Next time I read a blog, Hopefully it doesn’t fail me just as much as this particular one. I mean, I know it was my choice to read, however I truly believed you would have something interesting to talk about. All I hear is a bunch of moaning about something you can fix if you weren’t too busy looking for attention.
Great post! We are linking to this particularly great content on our website. Keep up the good writing.
I must thank you for the efforts you’ve put in penning this site. I’m hoping to check out the same high-grade blog posts by you later on as well. In truth, your creative writing abilities has inspired me to get my own, personal website now 😉
Howdy, I think your site may be having web browser compatibility issues. When I look at your site in Safari, it looks fine however, if opening in IE, it’s got some overlapping issues. I just wanted to give you a quick heads up! Aside from that, excellent site!
https://artdaily.com/news/171650/Mp3Juice-Review–The-Pros-and-Cons-You-Need-to-Know
Can I just say what a relief to uncover somebody that genuinely knows what they’re discussing over the internet. You actually realize how to bring a problem to light and make it important. More and more people really need to read this and understand this side of your story. I can’t believe you aren’t more popular given that you definitely have the gift.
https://artdaily.com/news/171650/Mp3Juice-Review–The-Pros-and-Cons-You-Need-to-Know
That is a very good tip especially to those new to the blogosphere. Short but very accurate information… Thanks for sharing this one. A must read post.
I wanted to thank you for this excellent read!! I definitely loved every bit of it. I have you bookmarked to check out new things you post…
Pretty! This has been an extremely wonderful article. Thank you for supplying these details.
Good post. I’m experiencing some of these issues as well..
This is a topic that’s close to my heart… Best wishes! Where are your contact details though?
It’s hard to come by well-informed people on this topic, but you seem like you know what you’re talking about! Thanks
Good day! I could have sworn I’ve been to your blog before but after looking at a few of the posts I realized it’s new to me. Regardless, I’m certainly delighted I found it and I’ll be bookmarking it and checking back often!
Spot on with this write-up, I actually believe this web site needs far more attention. I’ll probably be back again to read through more, thanks for the advice.
I blog frequently and I really appreciate your content. This article has truly peaked my interest. I’m going to take a note of your website and keep checking for new information about once per week. I opted in for your Feed too.
Greetings! Very useful advice within this post! It is the little changes that make the greatest changes. Thanks a lot for sharing!
You’re so cool! I do not believe I have read something like that before. So wonderful to discover someone with genuine thoughts on this topic. Really.. thank you for starting this up. This site is something that is needed on the web, someone with a bit of originality.
Oh my goodness! Awesome article dude! Thank you, However I am encountering troubles with your RSS. I don’t understand the reason why I cannot join it. Is there anybody else having the same RSS problems? Anyone who knows the solution can you kindly respond? Thanx!!
Good day! I could have sworn I’ve visited this site before but after looking at a few of the articles I realized it’s new to me. Regardless, I’m definitely pleased I came across it and I’ll be book-marking it and checking back often!
Way cool! Some extremely valid points! I appreciate you penning this article and the rest of the site is really good.
Right here is the right blog for anyone who wishes to understand this topic. You know so much its almost tough to argue with you (not that I personally would want to…HaHa). You definitely put a new spin on a subject which has been discussed for many years. Wonderful stuff, just excellent.
You’ve made some really good points there. I checked on the web to find out more about the issue and found most people will go along with your views on this website.
Hello there, I do think your site could possibly be having web browser compatibility problems. When I look at your website in Safari, it looks fine however when opening in Internet Explorer, it’s got some overlapping issues. I merely wanted to give you a quick heads up! Apart from that, fantastic site.
Nice post. I learn something totally new and challenging on sites I stumbleupon every day. It will always be exciting to read content from other authors and practice something from other websites.
Hi, I do think this is a great web site. I stumbledupon it 😉 I’m going to revisit yet again since I book-marked it. Money and freedom is the best way to change, may you be rich and continue to help other people.
Howdy! This blog post could not be written much better! Looking through this article reminds me of my previous roommate! He always kept preaching about this. I will send this information to him. Pretty sure he’s going to have a good read. Thank you for sharing!
I really love your website.. Very nice colors & theme. Did you make this site yourself? Please reply back as I’m trying to create my own personal site and would like to know where you got this from or just what the theme is called. Many thanks!
Aw, this was a really good post. Taking a few minutes and actual effort to produce a top notch article… but what can I say… I put things off a lot and don’t manage to get anything done.
You should be a part of a contest for one of the best websites on the internet. I’m going to recommend this web site!
I need to to thank you for this very good read!! I definitely loved every little bit of it. I have you book-marked to look at new things you post…
Having read this I thought it was really informative. I appreciate you taking the time and energy to put this content together. I once again find myself spending a significant amount of time both reading and leaving comments. But so what, it was still worthwhile!
This is the perfect blog for anyone who wants to understand this topic. You know so much its almost tough to argue with you (not that I really will need to…HaHa). You definitely put a fresh spin on a subject that has been discussed for years. Wonderful stuff, just wonderful.
This site was… how do I say it? Relevant!! Finally I have found something that helped me. Kudos!
This excellent website definitely has all of the information I needed concerning this subject and didn’t know who to ask.
This site was… how do you say it? Relevant!! Finally I have found something which helped me. Thanks.
Hello there! This post could not be written any better! Looking at this post reminds me of my previous roommate! He constantly kept talking about this. I will forward this article to him. Fairly certain he’s going to have a very good read. Many thanks for sharing!
I’m impressed, I have to admit. Seldom do I encounter a blog that’s both equally educative and engaging, and let me tell you, you’ve hit the nail on the head. The problem is something that too few people are speaking intelligently about. I’m very happy that I found this during my search for something concerning this.
Hello there! I just want to offer you a big thumbs up for your excellent info you have got here on this post. I will be returning to your web site for more soon.
This website definitely has all the info I wanted about this subject and didn’t know who to ask.
Hello there, I believe your web site might be having internet browser compatibility problems. When I take a look at your blog in Safari, it looks fine however, if opening in Internet Explorer, it’s got some overlapping issues. I merely wanted to provide you with a quick heads up! Besides that, excellent blog.
I’m amazed, I must say. Rarely do I encounter a blog that’s both equally educative and entertaining, and without a doubt, you have hit the nail on the head. The issue is an issue that not enough folks are speaking intelligently about. I am very happy that I found this in my hunt for something concerning this.
When I originally commented I seem to have clicked on the -Notify me when new comments are added- checkbox and from now on whenever a comment is added I recieve 4 emails with the exact same comment. Perhaps there is an easy method you are able to remove me from that service? Thank you.
Your style is really unique compared to other folks I’ve read stuff from. Thanks for posting when you’ve got the opportunity, Guess I will just book mark this blog.
This is the perfect site for anybody who hopes to find out about this topic. You know so much its almost hard to argue with you (not that I actually will need to…HaHa). You certainly put a new spin on a topic that’s been discussed for ages. Great stuff, just excellent.
You’re so cool! I don’t believe I have read anything like that before. So nice to find someone with genuine thoughts on this subject matter. Seriously.. thank you for starting this up. This web site is something that is required on the internet, someone with a bit of originality.
Excellent post. I absolutely appreciate this website. Keep writing!
Aw, this was an extremely good post. Finding the time and actual effort to make a top notch article… but what can I say… I procrastinate a whole lot and don’t seem to get nearly anything done.
Your writing is both informative and engaging.구글SEO
Your perspective adds a lot to the conversation.검색엔진최적화 seo
Hello there, There’s no doubt that your blog could possibly be having web browser compatibility problems. Whenever I look at your blog in Safari, it looks fine however, if opening in I.E., it’s got some overlapping issues. I simply wanted to provide you with a quick heads up! Aside from that, excellent website!
It’s hard to come by experienced people in this particular topic, but you seem like you know what you’re talking about! Thanks
Hi! I could have sworn I’ve visited your blog before but after looking at a few of the posts I realized it’s new to me. Anyways, I’m definitely happy I stumbled upon it and I’ll be book-marking it and checking back often!
Greetings! Very useful advice within this article! It’s the little changes that will make the biggest changes. Thanks a lot for sharing!
There’s certainly a lot to find out about this topic. I like all of the points you’ve made.
I appreciate your perspective on this issue.pbn 백링크
I’m sharing this with my friends right away.백링크 확인
I used to be able to find good information from your articles.
Hello, I think your website may be having browser compatibility problems. When I take a look at your site in Safari, it looks fine however, if opening in IE, it has some overlapping issues. I just wanted to give you a quick heads up! Besides that, excellent blog!
Everyone loves it when folks get together and share opinions. Great site, stick with it!
After looking at a number of the blog articles on your website, I seriously appreciate your technique of writing a blog. I book marked it to my bookmark website list and will be checking back soon. Please check out my web site as well and let me know your opinion.
Pretty! This has been a really wonderful post. Many thanks for providing these details.
I was excited to discover this great site. I need to to thank you for your time just for this fantastic read!! I definitely savored every part of it and i also have you saved as a favorite to see new stuff on your blog.
I blog often and I truly appreciate your content. The article has truly peaked my interest. I will book mark your website and keep checking for new details about once a week. I opted in for your RSS feed as well.
This is a topic which is near to my heart… Take care! Where can I find the contact details for questions?
Great site you have got here.. It’s hard to find high-quality writing like yours these days. I truly appreciate people like you! Take care!!
Very good post. I absolutely appreciate this website. Keep writing!
Hi there! I could have sworn I’ve been to this site before but after going through many of the posts I realized it’s new to me. Nonetheless, I’m definitely happy I discovered it and I’ll be book-marking it and checking back frequently.
An outstanding share! I’ve just forwarded this onto a friend who has been doing a little research on this. And he in fact bought me lunch due to the fact that I found it for him… lol. So let me reword this…. Thanks for the meal!! But yeah, thanx for spending time to talk about this issue here on your web page.
An outstanding share! I’ve just forwarded this onto a co-worker who was conducting a little research on this. And he in fact bought me breakfast due to the fact that I stumbled upon it for him… lol. So let me reword this…. Thank YOU for the meal!! But yeah, thanks for spending the time to discuss this issue here on your site.
This is a topic that’s close to my heart… Many thanks! Where can I find the contact details for questions?
Excellent write-up. I absolutely love this website. Thanks!
You need to be a part of a contest for one of the highest quality blogs on the internet. I’m going to recommend this web site!
bookmarked!!, I love your blog.
Your style is very unique in comparison to other people I’ve read stuff from. Thank you for posting when you have the opportunity, Guess I’ll just bookmark this blog.
You should take part in a contest for one of the best blogs online. I most certainly will recommend this site!
This is the perfect web site for anyone who hopes to understand this topic. You realize so much its almost hard to argue with you (not that I really would want to…HaHa). You definitely put a fresh spin on a subject which has been written about for ages. Wonderful stuff, just wonderful.
Good post! We will be linking to this great article on our website. Keep up the great writing.
Your style is unique compared to other folks I have read stuff from. Thanks for posting when you have the opportunity, Guess I will just bookmark this web site.
It’s hard to come by knowledgeable people for this topic, however, you seem like you know what you’re talking about! Thanks
You should take part in a contest for one of the greatest sites on the internet. I am going to recommend this website!
Hello there! This article could not be written any better! Reading through this post reminds me of my previous roommate! He constantly kept preaching about this. I will send this article to him. Fairly certain he’ll have a great read. I appreciate you for sharing!
That is a good tip particularly to those new to the blogosphere. Short but very accurate information… Appreciate your sharing this one. A must read post.
Howdy! This blog post could not be written much better! Going through this article reminds me of my previous roommate! He always kept talking about this. I am going to send this article to him. Pretty sure he will have a very good read. I appreciate you for sharing!
I used to be able to find good advice from your content.
Great information. Lucky me I came across your website by chance (stumbleupon). I’ve saved it for later!
Very good information. Lucky me I recently found your website by chance (stumbleupon). I’ve bookmarked it for later.
Right here is the perfect blog for anyone who wants to understand this topic. You know so much its almost tough to argue with you (not that I really will need to…HaHa). You certainly put a brand new spin on a topic which has been written about for decades. Excellent stuff, just great.
I blog quite often and I genuinely appreciate your information. This article has truly peaked my interest. I’m going to book mark your blog and keep checking for new details about once a week. I subscribed to your RSS feed as well.
This is a good tip especially to those fresh to the blogosphere. Short but very precise info… Thanks for sharing this one. A must read post.
There’s certainly a great deal to find out about this subject. I like all the points you made.
I used to be able to find good information from your blog posts.
Saved as a favorite, I love your site.
You have made some really good points there. I looked on the web to find out more about the issue and found most people will go along with your views on this web site.
Pretty! This has been an extremely wonderful article. Many thanks for providing this information.
You’ve made some decent points there. I checked on the internet for more info about the issue and found most individuals will go along with your views on this website.
It’s hard to come by well-informed people on this topic, but you seem like you know what you’re talking about! Thanks
This blog was… how do you say it? Relevant!! Finally I have found something which helped me. Many thanks.
Great article. I will be dealing with some of these issues as well..
Everything is very open with a precise explanation of the challenges. It was definitely informative. Your website is very helpful. Thanks for sharing.
It’s difficult to find educated people on this topic, however, you seem like you know what you’re talking about! Thanks
You are so cool! I don’t believe I’ve truly read through anything like this before. So wonderful to discover someone with some genuine thoughts on this subject matter. Really.. thanks for starting this up. This site is something that is required on the web, someone with some originality.
Great site you have here.. It’s difficult to find high-quality writing like yours nowadays. I truly appreciate individuals like you! Take care!!
An outstanding share! I’ve just forwarded this onto a coworker who was conducting a little research on this. And he actually ordered me dinner because I discovered it for him… lol. So let me reword this…. Thank YOU for the meal!! But yeah, thanx for spending some time to talk about this matter here on your web site.
Your style is unique in comparison to other folks I’ve read stuff from. Thank you for posting when you have the opportunity, Guess I will just book mark this blog.